Terminal, base station, radio communication method, and system

Abstract

A terminal is disclosed including a receiver that receives first downlink control information (DCI) indicating SRS transmission and second DCI indicating a listening condition for PUSCH transmission and a processor that, when contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, changes the listening condition for following PUSCH transmission based on a listening result for the SRS transmission. In other aspects, a base station, a radio communication method, and a system are also disclosed.

The invention claimed is: 
     
       1. A terminal comprising:
 a receiver that receives first downlink control information (DCI) indicating SRS transmission and second DCI indicating a listening condition for PUSCH transmission; and 
 a processor that, when contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, changes the listening condition for following PUSCH transmission based on a listening result for the SRS transmission. 
 
     
     
       2. The terminal according to  claim 1 , wherein, when the listening result for the SRS transmission is idle, the processor changes the listening condition for the following PUSCH transmission to the listening condition for PUSCH transmission without UL listening. 
     
     
       3. A base station comprising:
 a transmitter that transmits first downlink control information (DCI) indicating SRS transmission and second DCI indicating a listening condition for PUSCH transmission; and 
 a processor that, when contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, controls the listening condition in the terminal so as to change the listening condition for following PUSCH transmission based on a listening result obtained from the listening condition for the SRS transmission in the terminal. 
 
     
     
       4. A radio communication method for a terminal, comprising:
 receiving first downlink control information (DCI) indicating SRS transmission and second DCI indicating a listening condition for PUSCH transmission; and 
 when contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, changing a listening condition for following PUSCH transmission based on a listening result for the SRS transmission. 
 
     
     
       5. A system comprising: a terminal; and a base station,
 the terminal comprising:
 a receiver that receives first downlink control information (DCI) indicating SRS transmission and second DCI indicating a listening condition for PUSCH transmission; and 
 a processor that, when contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, changes a listening condition for following PUSCH transmission based on a listening result for the SRS transmission, and 
 
 the base station comprising:
 a transmitter that transmits the first DCI and the second DCI; and 
 a processor that, when the contiguous transmissions of the SRS transmission and the PUSCH transmission are scheduled, controls the listening condition in the terminal so as to change the listening condition for the following PUSCH transmission based on the listening result obtained from the listening condition for the SRS transmission in the terminal.